static void _console_write_integer(int x, int base) {
static char* characterLookup = "0123456789abcdef";
int negative = 0;
if (x < 0) {
x = -x;
negative = 1;
}
int length = 0;
int temp = x;
do {
++length;
} while ((temp /= base));
char buffer[length + 1];
for (int i = length - 1; i >= 0; --i) {
buffer[i] = characterLookup[x % base];
x /= base;
}
buffer[length] = '\0';
if (negative) {
console_write_char('-');
}
console_write_str(buffer);
}
main()
{
char buf[64];
while (1) {
fgets(buf, 64, stdin);
console_write_str(buf);
console_flush();
}
}
//------------------------------------------------------------------------------
void console_write_P (const char *Buffer,...)
{
va_list ap;
va_start (ap, Buffer);
int format_flag;
char str_buffer[20];
char move = 0;
char len, b;
char by;
char *ptr;
//Ausgabe der Zeichen
for(;;) {
by = *Buffer++;
if(by==0) break; // end of format string
if (by == '%') {
by = *Buffer++;
while (isdigit(by)) { // potential overflow of move
move = by - '0' + move * 10;
by = *Buffer++;
}
switch (by) {
case 's':
ptr = va_arg(ap,char *);
console_write_str(ptr);
break;
case 'c':
//Int to char
format_flag = va_arg(ap,int);
console_write_char (format_flag++);
break;
case 'i':
case 'd':
itoa(va_arg(ap,int), str_buffer,10);
goto ConversionLoop;
case 'u':
utoa(va_arg(ap,unsigned int), str_buffer,10);
goto ConversionLoop;
case 'x':
itoa(va_arg(ap,int), str_buffer,16);
//****************************
ConversionLoop:
//****************************
len = strlen (str_buffer);
b = '0';
while ( len < move ) {
console_write_char (b);
len++;
}
console_write_str (str_buffer);
move = 0;
break;
} // switch
} else
